Opera 25 : Changing Cache location

Hello, I recently installed Opera 25 on my PC.
Since the current cache folder location is on my ssd, I'd like to change its location on my hdd but I can't find any way to do this.
I read this discussion ( https://forums.opera.com/topic/4006/change-opera-22-cache-file ) but it doesn't work...
Can anyone help me?

Now I can see a 'cache' directory in the destination I have chosen but there is still a problem:

-in Info about Opera there is still the old location of the cache folder

-I checked both the new and old cache folders if they changed size during browsing and I noticed that BOTH the folders change their size (sorry for bad english) in a few words, it looks like I have two cache folders now

Try deleting the old cache folder (with Opera closed) and see if Opera recreates it.
If it does, and it's still using the new folder as well, it may well be that there are two (or more) caches used by Opera for different purposes, and only one is being moved by the command line switch.